PDA

View Full Version : Strange problem


Goatsac
06-27-2009, 05:56 PM
First off the specs on my gun. I have a VS2 with a Brand New CP ASA, Used CP reg, Used trinity front block. I haven't really had much time to use the gun since I installed these new parts and I am having some problems.

The gun will shoot fine for half a hopper and then it will start not recocking all the way, maybe 1/8 inch from being fully cocked. Other times it will leak after a shot for a few seconds and I can feel air coming out from the eye covers. It will leak like this and then slowly stop leaking as if a seal is slowly coming back into place to stop the flow of air.

This happened 2 weeks ago and I tore the marker all the way down, even took the valve apart, and lubed every o-ring and metal on metal sliding surface (the striker tube.) I shot a hopper through it after this and the problem stopped. I went out today to play and the same thing started happening. I am running at 250 psi at the reg but I still have the recocking problems. I am thinking that maybe the leaking problem would have to do with not enough lubing in the valve/cup seal.

Before I made these "upgrades" the marker was working perfectly. I would hate to go back to stock if I didn't have to.

Any ideas? HELP!!

Griff
06-28-2009, 01:02 AM
Try new o rings, For valve bolt and hammer, I had simular problems Still don't know what oring was giving me the problems but that fixed it, For the day. I am now running at 260 and still have recocking problems. I My valve has yet to ever leak air, I'm thinking I might get new valve and bolt springs and see if it helps. I'll post results.

Griff
07-17-2009, 10:00 PM
Spring for bolt was looking farly worn, streched it longer at 260 psi I am shooting at 290-295 FPS with stock barrel. No recocking problems only shot 200 rounds.

Weever
07-18-2009, 04:58 AM
First off the specs on my gun. I have a VS2 with a Brand New CP ASA, Used CP reg, Used trinity front block. I haven't really had much time to use the gun since I installed these new parts and I am having some problems.

The gun will shoot fine for half a hopper and then it will start not recocking all the way, maybe 1/8 inch from being fully cocked. Other times it will leak after a shot for a few seconds and I can feel air coming out from the eye covers. It will leak like this and then slowly stop leaking as if a seal is slowly coming back into place to stop the flow of air.

This happened 2 weeks ago and I tore the marker all the way down, even took the valve apart, and lubed every o-ring and metal on metal sliding surface (the striker tube.) I shot a hopper through it after this and the problem stopped. I went out today to play and the same thing started happening. I am running at 250 psi at the reg but I still have the recocking problems. I am thinking that maybe the leaking problem would have to do with not enough lubing in the valve/cup seal.

Before I made these "upgrades" the marker was working perfectly. I would hate to go back to stock if I didn't have to.

Any ideas? HELP!!

That's the reg. Just put 3-4 drop of oil in the ASA, dry shoot for about 50 times, and your done. I had the very same problem once with my old VS2.

Goatsac
07-22-2009, 09:55 AM
That's the reg. Just put 3-4 drop of oil in the ASA, dry shoot for about 50 times, and your done. I had the very same problem once with my old VS2.

If I have CP asa and reg would I still need to do this? I remember doing this when I had stock parts on my gun but would I still need to with the aftermarket parts?

Weever
07-22-2009, 02:35 PM
This procedure help to oil the reg from the inside. Aftermarket reg are better, but they needs lubrification too. I think you should give it a try.

aznspyder
07-26-2009, 02:49 PM
Im not sure if u fixed ur problem yet, but try oiling ur valve o-rings.

Griff
07-26-2009, 08:42 PM
Mine is up and working. Springs were very worn.

Goatsac
07-28-2009, 11:06 AM
I was running 250 PSI when this problem originally occured. I don't have easy access to an area to shoot to test things out so the last time I went and played, I shot about 10 rounds and the problem was there instantly. I tried turning up the air since I was having recocking issues but that didn't help. I then turned the air down and tried it again with luck. It was shooting normally. Then the batteries in my hopper decided to stop working so I couldn't test it out at a high ROF but I think it is better for the most part. I will see in a couple weeks when I go out again.

Thanks for everyone's input though. I'll keep my fingers crossed that the problem is fixed.

Goatsac
10-26-2009, 09:56 PM
I had the problem solved and the gun worked flawlessly for about a day. Now the problem is back. It almost seems like the striker is catching on something. I am going to polish it with a dremel and polishing wheel to see if that makes it slide easier in the tube. If this doesn't work I am out of ideas. I will also try to put some oil in the reg and dry fire it, even though I don't know what that would do with the problem I am having, I am up for anything!

Any other ideas would be greatly appreciated.

Thanks!

DRAGON
10-27-2009, 05:22 PM
Since you mentioned air from the eye covers, I'd suspect it was some sort of valve assembly leak leaking up through the bolt, can't say for sure. Try a kit like this (http://www.sundragonpps.com/catalog/item/3373147/4890965.htm) and maybe even a cup seal to cover all bases of the valve. Lube everything with Dow33 if you have it since Dow has staying power. Don't ever use non-paintball oil. Make sure you can blow air through the balance valve, valve pin(yes it has a hole down the center of it) to clear any possible obstructions. Look in the manual to be sure you put the rings in the right places. The ones you might not know about is, there's one on the cup seal(very tiny) and one in the inside diameter of the rear valve body where the valve pin seals. That one is fun to take in and out **sarcasm** Be sure not to scratch the i/d of the rear valve body half in the process -

Goatsac
10-30-2009, 06:59 PM
I just finished a deep clean and a relube of the whole marker. I even took apart the valve again and relubed every oring that I could find. I have already changed out all of the orings and the cup seal with the extras that came with the marker. I am using the Smart Parts Sleek Lube, which I think is Dow 33.

I also polished the striker to minimize the drag from operation. I put a few drops of gun oil in my asa and dry fired about 20 shots through it to lube the inside of the reg. I will be going out to the field to test it tomorrow since I have no backyard here to use. Hopefully I fixed the problem in one of the things that I did. We will see tomorrow.

Another questions if anyone knows. How can I tell if my eyes are bad? I have been playing with the eyes off for a while now because I forgot what the eyes setting looked like with the lights. I just had the eyes on and I put my finger in the breech (Bad idea I know, but I was holding the cocking knob incase I tripped the bolt) and nothing happened with the eyes in the on setting. I turned off the eyes and the trigger tripped the sear like it should. I noticed during a cleaning a while back that the wire for the eyes got pinched a little when I put the body back on the trigger frame. The metal is showing but not in a position where it could be grounding out. Any ideas about that?

Thanks again for all of your help guys. I really appreciate it.

Since you mentioned air from the eye covers, I'd suspect it was some sort of valve assembly leak leaking up through the bolt, can't say for sure. Try a kit like this (http://www.sundragonpps.com/catalog/item/3373147/4890965.htm) and maybe even a cup seal to cover all bases of the valve. Lube everything with Dow33 if you have it since Dow has staying power. Don't ever use non-paintball oil. Make sure you can blow air through the balance valve, valve pin(yes it has a hole down the center of it) to clear any possible obstructions. Look in the manual to be sure you put the rings in the right places. The ones you might not know about is, there's one on the cup seal(very tiny) and one in the inside diameter of the rear valve body where the valve pin seals. That one is fun to take in and out **sarcasm** Be sure not to scratch the i/d of the rear valve body half in the process -

Goatsac
10-31-2009, 01:14 PM
Update: Just got back from the field. Marker is still having problems. All problems are sporadic and inconsistent.

At first it was working fine but then upon reaching high rates of fire, sometimes the bolt wont cock all the way back. It might just be right on the edge of clicking all the way back and I have to manually get it the rest of the way. I have thought that maybe my CP reg isn't recharging fast enough to keep up with it.

Another problem is that sometimes after firing, the bolt will come half-way back and air will be coming out from the frame around the sear. This problem seems like the valve pin isn't closing all the way when the marker cycles and is getting stuck open. It will stop the leak and finally seal on its own at random times after occurrence. I have thought about a stiffer front spring (the one that goes in the LPC) to make sure the cup seal closes.

My ideas to fix these problems, since cleaning, changing all o-rings, and lubing everything hasn't been working, is to look for a new balance valve and regulator.

Any other ideas of what could be happening would be greatly appreciated. As of right now I am going back to stock, since it worked fine before I screwed with it. I will see if that fixes it.

Goatsac
10-31-2009, 02:30 PM
Further Update: I have been reading on Pbnation and someone mentioned to check the tightness of the set screw for the balance valve. I recall that since I took the gun apart I have been tightening it down pretty tight. This might have made the o-rings to have a gap on one side of the valve. I just cleaned and relubed the whole gun and didnt put the screw in as tight. I will try it out later today and see if that fixed it. I'll Keep my fingers crossed.

Does this sound like something that could happen?

martinez15
11-06-2009, 05:10 PM
Hello

I have had this problem many times before. But one day i figured it out. I disassembled the whole gun. When i took out the valve i had notice it was unscrewing. That was my problem.

Problem:
More than likely the valve is loosening up when you air it up and shoot.

Solution:
I put some LOCTITE THREAD LOCKER RED 271 on the threads of the valve body. My valve hasn't loosen up since. Let the LOCTITE dry for at least 24 hours before reassembly. This will not damage the valve or threads.

Please pm me if this solves your problem

http://ecx.images-amazon.com/images/I/31evSc8YZGL._SL500_AA280_.jpg

Goatsac
11-07-2009, 03:00 PM
Had a small recocking problem today at high ROF but I think that has something to do with not enough back pressure on the bolt because I chopped paint when it happened. Then I was having recocking problems dry firing. After today's semi success, I have changed back to the stock parts and I will go out again next weekend and try it again. If I have no problems at all with the stock parts then I know that there is something not working right with the upgraded parts. We will see.

I will keep updating as I progress with my problem.